Track gauge



June 1 7, 1941.

A T. BRUMFIELD TRACK GAUGE Filed Sept. l2, 1940 3 Sheets-Sheet l June 17, 1941. A T. BRUMFIELD 2,246,430

TRACK GAUGE Filed Sept. l2, 1940 3 Sheets-Sheet 2 June 17, 1941. A. T. BRUMFIELD TRACK GAUGE Filedl Sept. 12, 1940 f/'g, fa,

3 Sheets-Sheet 5 hRrQy-i fin/41M Patented June 17, 1941 STATES OFFIQE;

TRACK GAUGE Ambrose T. Brumfield, NewSalem, N. Dak.

Applicatienseptember 12, 1940; Serial No. 356,541

(,Cl. 33e-146) 8 Claims.

device for indicating the gaugefof a railway trackV which is` adapted to be detachably mounted on a railway vehicle for actuating a gauge or` other indicatoru for indicating; to an Aoperatorror a passenger of theyvehicle the gauge of the track over rails, said disc.` members 'being pivotally con` nected to spring actuated pivotally mounted arms whereby said,` disc members are held in engagement with the` heads of the rai-ls.

Still another aim of the invention is to provide spring means: forpositioningA said disc members at obliqueY angles to the arms and to thel rails, and:` means l. whereby `said arms may loe` folded inwardly and upwardlyarelatively toeach other when not in use. j l l Still afurther aim` ofV the invention is to provide means for rocking the supports of said disc members relativelyl to the armswhen the arms are folded, tomove` the disc members to positions substantially parallel to the arms.

Still4 a further aim of the invention is `torrovide spring actuated yokes for engaging and swinging the arms inwardly relatively .to` each other when the device is raised relatively` to the railsto move said-discs. upwardly and out of engagement therewith tothereby prevent .the 'arms y and discsfromr swinging outwardly beyond the vertical planes of the rails so that the discs would otherwise be damaged if the` measuring device was thereafter moved downwardly.

Other objects and advantagesl of the invention will hereinafter become more fully apparent from the following description of the drawings, which illustrate preferred embodiments of the invention; and wherein- Figure l is a side elevational view of a railway 'vehicle showing the measuring instrument attached to the rear end thereof andY transversely of the vehicle,

Figure 2 is a view taken at right angles to Figure 1 and lookingtoward the end of the vehicle on which the measuring device is mounted.

Figure 3 is an enlarged fragmentary longitudinal vertical sectional view, partly inelevation of a. portion of theinvention, l

Figure 4 is `a transverse vertical sectional view f taken substantially along the plane of the line lll- 4; of Figure 3,

Figure 5; is a longitudinal horizontal sectional view: taken substantially along the plane of,` the Figure 6 is an enlarged transverse vertical sectional view taken substantially along the `plane or the line-66fof Figure 2,

Figure 'lis a sectional view taken substantially along-thevplane ofthe line 'l-l of Figure- 6,

FigureS is an enlarged transverse vertical sectional View takensubstantially along the plane ofthe line li--` of Figure 2,

Figure\9 is a sectional view taken substantially alongr thel plane of` the line 9-9of Figure 8,

Figure l0` is a` plan` view of a portion of the device,

Figure l1 is. a longitudinal vertical sectional Viewtaken substantially along the plane of the line II-l l of Figure 10, l l

Figure l2 isa plan view of the parts disposed within the casing, shown in Figure 10, with the cover or top wall of said casing removed,

Figure 13` is a view similar to Figure 10. show.-` ing a` modified constructionof` a `portion ofthe invention as disclosed in Figures luto 12,`

Figure 14 is a longitudinal ver-tical sectional View, partly in elevation, taken substantially along the plane of the line lila-i4 of` Figure 13,

and i Figure 15 is a view similar to Figure 5V showing another modication of a portion of the invention. l i

Referring more particularly to the drawings, wherein1 like reference characters designatelike 1 or corresponding parts throughout the different views, I6 designates generally a vehicle provided with railway wheels Il ,for engaging a pair of rails I2, forming a railway track. The vehicle- I0, forms no lpartof the invention, but is shown merely to illustrate the application of the in- Vention and may be of any suitable construction, preferably of the motor driven type conventionally employed by railway track inspectors.

The invention comprises a` device for measuring the gauge of the track over which the vehicle I is moving. Said measuring instrument, designated generally I3, includes an elongated, inverted channel shaped frame I4 through which extends a plurality of bolt fastenings I5 which are adapted to engage threaded openings, not shown, in the rear crossbar I'S of the frame of the vehicle It] for mounting the channel member I4 at the rear of and transversely of the vehicle I0. A shaft I1 extends transversely through and is journaled in the frame I4, adjacent each of its ends. Each of the shafts I1 is provided with a turning knob I8, on one end thereof, and a spiral spring I9 on its opposite end, which elements are disposed on the outer side of the frame I4. Referring to Figure 2, the spiral spring I9 of the shaft I1, disposed adjacent to the left hand end of the frame I4, urges said shaft to rotate in a counterclockwise direction, while the spiral spring I3 of the shaft I1, disn posed adjacent the right hand end of the frame I4, urges said last mentioned shaft to rotate in a clockwise direction.

An arm, designated generally 2U, is turnably mounted on each of the shafts I1. Each of the arms 20 includes the longitudinal bars 2| which are connected by the transverse bars 22. Bars 2I at their upper ends, are provided with bearings 23 for engaging the shafts I1 for pivotally mounting the arms 20 relatively to the frame I4. A tube 24 is flxedly secured to each'of the arms 20 and disposed at an angle thereto, as best seen in Figure 3. A rod 25 is slidably mounted in each of the tubes 24. Rods 25 are of. sufficient length to extend beyond the ends of the tubes 24 and are provided at their upper ends with rollers 26|. Expansion coil springs 21 are carried by the upper portions of the rods 25 for urging the rods upwardly relatively to the tubes 24. A plate 28 is hingedly connected at 23, at one end thereof, to the lower end of each of the arms 25. Plates 28 are provided with the obliquely disposed free ends 30 to which are pivotally connected links 3|. The opposite, free ends of the links 3| are pivotally connected at 32 to the lower ends of the rods 25 and form abutments for engaging the lower ends of the tubes 24 to limit the upward movement of the rods 25. A disc 33 is connected by means of a fastening 34 to each of the plates 28. Fastenings 34 rotatably mount the discs 33 relatively to the plates 28 and position said discs on the under or inner sides of the plates 28 and in spaced apart, substantially parallel relationship thereto. When the rods 25 are in their normal projected positions, as best illustrated in Figures 2 and 3, plates 2B and the discs 33 are disposed at oblique angles to the arms 20 so that the discs 33 extend downwardly and outwardly relatively to the depending ends of the arms 20 for engaging the inner sides of the heads of the rails I2.

The upper crossbar 22 of each of the arms 20 is formed of sections which project from the inner sides of the arms 25 and which are provided with apertured free ends 35 for receiving an end of a rod 36 which is pivotally connected to the ends 35 by a pintle 31. Rod 36, at its opposite end, is provided with a head or piston 38 which is slidably mounted in a cylinder 33. The cylinders 39 are each provided with eyelets 44 at their upper, closed ends. The cylinders 39 are connected to the frame I4 by means of rods 4I, which extend through the eyelets 40, and which are secured to the sides of the frame I4. The Cylinders 39 are pivotally mounted relatively to the rods 4I and contain expansion coil springs 42 which urge the pistons 38 and rods 35 outwardlyv relatively to the cylinders, for urging the arms 20 outwardly, relatively to each other, to thereby yieldably hold the discs 33 in engagement with the inner sides of. the heads of the rails I2.

A rocker arm 43 is loosely connected at one end thereof to each of the shafts I1 between the bearings 23, as best seen in Figure 4. Rocker arms 43 extend upwardly from the shafts I1 to adjacent the Lipper portion of the frame i4. Frame I4 is provided, adjacent each of its ends with a depending plate 44, which is disposed inwardly of the rocker arms 43, and which are provided with openings 45, through each of which openings a rod 45 loosely extends and is slidably mounted. The remote ends of the rods 43 are pivotally connected by pins 41 to the upper, free ends of the rocker arms 43. Rocker arms 43, adjacent their lower ends, are provided with outwardly projecting extensions 48. The arms 2l) are provided with the outwardly projecting lugs 49, which are disposed beneath the extensions 48, and which are provided with threaded apertures, not shown, for adjustably receiving the screws 50, the upper ends of. which bear against the under sides of the extensions 48 for urging the rocker arms 43 and the rods 46 inwardly of each other.

Referring particularly to Figures 2, l0, 1l and 12, a casing 5I is secured in the frame I4, intermediate of the ends thereof. The casing 5I is supported in the frame I4 and at an oblique angle thereto by means of a supporting bracket 5I', as best seen in Figure 6. Casing 5I extends longitudinally of the frame I4 and is provided at its ends with openings 52 through which extend the adjacent ends of the rods 46 and in which said ends are slidably mounted'. A shaft 53 is journaled in the casing 5I, intermediate of its ends, and is disposed perpendicularly thereof. A pinion 54 is keyed to the shaft 53 and is disposed within the casing 5I to mesh with the teeth of a pair of rack bars 55 which are slidably mounted in the casing 5I and on opposite sides of the pinion 54. The adjacent ends of the rods 46 are connected to the remote ends of the rack bars 55 by the cross heads 53 and the nut and bolt fastenings 51. Crossheads 55, as best seen in Figure 12, are provided with drilled openings 53 to receive the threaded ends 59 of the rods 45 and with openings through which extend the bolts, which form part of the fastenings 51, and which project from the ends of the rack bars 55. The nuts of the fastenings 51 are attached to the threaded, free ends of the bolts for detachably securing the crossheads 56 thereto. A spiral spring 6I, is secured at one end to the casing 5I and at its opposite end to the shaft 53 for urging the shaft 53 to rotate in a counterclockwise direction, as viewed in Figure 10, to urge the rack bars 55 and the rods 45, connected thereto outwardly of the ends of the casing 5I to thereby prevent slack in the parts and to urge the rocker arms 43 outwardly relatively to each other so that their extensions 48 will be held in engagement with the adjusting screws 50.

In lieu of the casing 5I and the parts contained therein, the shaft 53 may be journaled in a tube B2 which is suitably secured in the frame I4, by means, not shown, and which is disposed intermediate of the ends of said frame and longitudinally thereof. The shaft 53 extends through and is journaled in a block 53 disposed intermediate of the ends of the tube G2 and which is secured aeecgfieo thereto to forman abut-ment for the adjacent.

ends of at pairofexpansion coilsprings;(ills` 'Ilhe exposed', yupper portion of; thefshaft 53 lsfprovided1 with; across arm.V 6.5 which is u xedly secured to the shaft 53 intermediate of its ends. Inf the: embodiment of. the invention` asidisclosedfin Fig ures 13 and 14, the rodsi46 `are providedwitlr the` enlarged adjacent portions 66-, the,y free-1 ends; ofi which` arev disposed in telescoping; engagement with the ends of the tube. 6,2 and irl-abutting en-Y gagement with the remote ends of,` the springs 84; which` tend to urgethe rods 46 and theirportions G6 outwardly, relatively to each-other in the same: manner` and for the.. same purposefasr-the spiral, spring 6I. A pair ofi. links 81-arepivotally con-` nected at their adjacent ends tothe endsofttlfxeY crossearm 65 andare pivotallyl connectedrat;their.m remote ends` by means of' the screws 68: to ex. posed" portions of the end portions.`V` 86:.. so thatn when the rods 46 andends` GBi'move inwardly; relatively to-'eafch-other, shaft- 53willrbe turned; ina

aloounterclockwise direction, as seen. in Figura 13;,V

ing 1'2I encloses the pulley 63 and the upperv portion of the shaft 53 and is provided with: a socket 13, in the upper portion thereof.. to` receive the upper endof*` thershaft 53-` which.` isijournaledv therein and` by means of which the casing.` 12` is supported; on the` shaft 5.3.- Casing; 1x2; as best seenin` Figure 7:, is provided with:` a pair-of annular spaced. substantially parallel` outlets 1.4-

toreceive corresponding` ends of a-.pair ofi-:tubes 156 Pulley 69de providedwitheafgroovedwperiphery 16 and` with a recess", which; opens outwardly of a portion. of the` grooved periphery 16;

A contractile. coil spring 18e is` secured at one` end:`

tothel shaft 53. and. into-'thevinner end. of the recess 1.11, for a purpose-whichwill-hereinafter ben described. i

Referring particularly to Figuresf 1- and, 8; the'.V

vehicle. l()` is provided with aiplatform 15J-having: any opening 19.! in which issecured 'a casing 8.0;. corresponding to the-.casing- 12, provided-Witlr-theannular outlets 84 int` which; arezsecured the op` posits ends` of the tubes. 15. lower end extending into the casing, lili` andi which is journaled in. asocket portionv 83. A pulley 84 is. mounted on` the shaft B2i and` disposed within the casing 88. Pulley 84yis provided witha hub 85,which isljournaled in the upper' side of the casing` B and which is secured to A dial. face- 81 is` mounted on the upper side of-thsplatform 'laan-dfdisposed. at an oblique angle the-reto.` Dial;

the shaft `82` by. means of a pin` 86.

81 is securedV inaposition. relatively to platform- 18` by means of` abracket 88.. The upper end of!` the shaft. B2. is journaledin the bottom portion of thedial face 81, and `aipointer 89, whichis disposedwithin the diall, is; securedlby means of a screw fastening 90` to the upper end. of theshaft 82. 1 The pointer 89,` asbestseen in Figure- 2, is provided with an. arrowV tippedV end which is adapted to-move relatively to calibrations: 9i,

on the dial 81, for indicating variations in; the

gauge of the rails 1.2,. as will hereinafter become moreA fully apparent. The pulley 84 is likewise provided with a grooved periphery 82.` An end-` less cable 93 is` trained around. the gyrooved per Af shaft B2i. has a:

ripheries or thegpulleys: and 84?"and extends; through; the` tubesv 1.5` so that:` the: cable 93. is; entirely enclosed by said tubes and by thecasings` H!-` a-nd 8.0; A fastening 34" secures a portioni of the cable 93 to alportion of thel grooved; periphery ofthe pulley 84` to` prevent the cable 831from slipping.; relatively tof the pulleys. The free end.` of the, contractile coil spring` 1811s` se.- cured; to: a portion or the cable' 93` for drawing; sai-d last mentioned portion. into the; recess 11 to therebytension the cable and prevent itefrom. slipping `relatively to rthe pulley` 68.

From thsforegoing it will be obvious that the springs 21 willi hold the discsi 33 at an oblique angle` to.:` therrails` |2, as best illustrated in FigurerZ, andctnatthesprings 42, throughl the-rods 3.6will-urgelthe arms 20. outwardly of each other; to.` causethe-peripheries of. the discs. 33 to fric.. tionally` engage the inner sidesof. the heads-of;` the` rails I2 and to be revolved to` rolllthere`` along; due to traction,` as the-vehicle I0 moves over thefrails. The screws50 can be adjusted to.move1therocker arms 43f and their rods 48 so thaty when the` discs` 3.3Y are.- in= engagement: withy corresponding portions. of. the rails l2;` which are ofthe proper gauge, the arrowl tipped` end or, the pointer 88j1 will be centered over theqzero of` the` calibrations Ell.` As'-` the discs` 33 move" along ther rails, they will come.- in contact with portionsV which` are: spaced a greater distance apartthantthecorrcct gaugeof thetracls thereby causing the.V arms to swingv outwardly so that the. screws. will force theextensions 48. upwardlyto swing theA rocker arms. 43 inwardly. This will move the rods 46- inwardlyto turn thershaft` 53 im a. clockwise direction, when. associ-H ated with thefpartsas shown. in` Figures 10 torl-2z Gable.- 33 willthereby be moved. to turnlthe shaft BZLinthesame direction. tocause the arrow tipped.

. end. of.. the pointer B8 toswing. totheright, rela-- tively to the. calibrations 9|` toindicate that the width of the rails, at the particular point, is greaterA than the correct track gauge. The location. of.` this portionof the` track:` and the extent that.. it varies from the correct. gaugecan. be

recordedby one of the occupants of. the vehicle L0.. so. thatlproper correction may thereafter be made.` If the rails 12- are narrower tharrthe cor.- reotl gauge, at any portion. thereon. the arms 2li,A will. be swung inwardly relatively to each. other thereby causing the screws 50 to move down wardly and. out of engagement with=.the extensions 48v to permit. the spiral spring Sito.V turnthe `shaft 53. in a counterclocliwise. directionfl to:

swing the rocker arms` 43.` outwardly until their eXtensionsABl again. come incontactwith the set. screws 50. This counterclockwisemovement of the. shaft 53. vvill` cause the` shaft 82. to be turned` counterclockwise to turn the arrow tppedend of the pointer 8.9. to the. lef-t. relatively to the calibrations 8.! for indicating that the portion of. the. trackis narrower than the correct gauge. 1

The operation. will be the same where` the measuring` instrument l\3v is provided. with` the parts, shown in. Figures 13. and 14, rather;` than' those. shown` in Figures 10 to 1-2, inclusive.ex-Y ceptthatthe shaft 53.wi1l.be turned in a counter-` clockwise ydirection where, the trackis wider than` the. correct. gauge and in. a clockwisedireotion where` it. is. narrower than-the correct gauge or in. other Words, conversely to themanner.` in` which it is actuated when. `associated with the parts as showninEigures 1,0 to l2, as heretofore described. Thus, the arrow tipped end!` of-tneV pointerv 89 willmove totheleftof itszero po.

siton to indicate width greater than the correct gauge and to the right to indicate width less than the correct gauge.

If, for any reason, it is desirable to position the measuring instrument I3 so that it will be inoperative without removing it from the vehicle |9, the arms 29 may be swung upwardly and inwardly to folded positions, such as the folded position of the left hand arm 29, as illustrated in dotted lines in Figure 3. As the arms 20 are swung inwardly and upwardly the rollers 26 will engage the inner sides of the plates 44 to retract the rods 25, to cause them to move downwardly relatively to the tubes 24 to thereby swing the plates 28 and the discs 33 into positions, substantially parallel to their arms 29, as illustrated in Figure 3, in dotted lines. In this manner, the parts 29, 28 and 33 can fold compactly into and beneath the frame I4. As the arms 20 are moved upwardly the rods 36 will be forced inwardly of the cylinders 39 and the pivot pins 31 will be swung upwardly and across the horizontal plane on the rods 4|, into the dotted line positions, as seen in Figure 3, in which positions the springs 42 will be disposed to urge the arms 29 upwardly to thereby retain them in a folded position.

A yoke shaped member 95 is xedly secured at its ends to each of the shafts I'I. The yoke shaped members 95 are disposed Within Ithe frame I4. A leaf spring 96 is ixedly secured at its upper end to the outer side of each of the ends of the frame I4. The springs 96 depend downwardly below the ends of the frame I4 and are provided with inturned free ends forming detents 91. The leaf spring members 99 are provided with keeper elements 98 which project from their inner sides, intermediate of their ends, through openings 99 in the end walls of the frame I4 for engaging beneath the yokes 95 for supporting said yokes in substantially horizontal positions and for holding the spiral springs I9 tensioned.

Should the rear end of the vehicle I9, for any reason, move upwardly and away from the rails I2, suiciently so that the discs 33 will be moved out of engagement with the inner sides of the heads of the rails, the arms 29 would be forced outwardly by the springs 42. This result would undoubtedly cause damage to the discs 33 when the rear end of the vehicle I9 again moved downwardly and back to its normal position, except for the fact that the arms 29 in moving outwardly will strike the detents 91 to force the leaf spring members 96 outwardly. This will cause the keeper members 98 to move outwardly and out of engagement with the yokes 95 which will be swung downwardly by the shafts I'I, which will be turned in a direction, by the expansion of the springs I9, to cause the yokes 95 to swing downwardly and inwardly of one another. This movement of the yokes 95 will cause them to engage the arms 29 to swing the arms inwardly to folded positions so that the measuring device I3 will not be damaged. The knobs I8 can then be turned to return the yokes to their normal positions above the keepers 98, for retensioning the spiral springs I9 and for relatching the yokes 95 in retracted positions.

If desired, each of the spiral springs I9 may be dispensed with and replaced by means of an expansion coil spring |99, contained in a cylinder |9I. Cylinder |9|, as illustrated in Figure 15 is provided with a closed end, forming a seat for the inner end of the spring |99. The closed end of the cylinder I9I is provided with an eyelet |92 extending therefrom for receiving a fastening |03, by means of which the cylinder |9| is pvotally connected to one of the sides of the frame I4 and on the outer side thereof. The end of the shaft II, opposite the end provided with the knob I8, is provided with an angularly projecting extension arm |94 to the free end of which is pivotally connected an end of a piston rod |95 by means of a pivot pin |96. The piston rod |95 is provided at its opposite end with a piston |97 which is slidably disposed in the cylinder |9| and against which the opposite end of the spring |99 bears to force the piston rod |95 outwardly of the cylinder |9I. The extension |94 extends upwardly relatively to the shaft I`| so that the piston rod |95, when projected by the spring |99 will turn the extension |94 and the shaft in a clockwise direction to swing the yoke 95 downwardly and inwardly. It is to be understood that each of the shafts may be provided with the means, as heretofore described and as illustrated in Figure 15, for turning the shafts I'l in lieu of the spiral springs I9 and that the parts are so arranged relatively to each of the shafts that the shafts, when actuated by the springs |99 will cause the yokes 95 to swing downwardly and inwardly relatively to each other.

Various modifications and changes are contemplated and may obviously be resorted to provided they fall within the spirit and scope of the invention as hereinafter defined by the appended claims.

I claim as my invention:

1. A track gauge comprising a frame, shafts journaled in said frame and disposed transversely thereof, arms loosely mounted on said shafts and depending therefrom, plates pivotally connected to the lower, free ends of said arms, discs carried by said plates, spring means for holding said discs at an oblique angle to the arms, means for yieldably urging the arms outwardly, lugs loosely connected to and projecting from said shafts, rods connected to the free ends of said lugs and extending inwardly of said frame, means associated with said rods and actuated thereby for indicating the gauge of a track, between which the discs are disposed, each of said lugs being provided with an extension for engaging one of said arms for swinging the lugs inwardly of each other when said arms are moved outwardly by said yieldable means, and means for moving the lugs away from each other, when said arms are contracted.

2. A device as in claim 1, comprising spring projected latch means, spring means for urging the shafts to rotate in one direction, members keyed to the shafts for engaging said latch means for normally holding said last mentioned spring means tensioned, said latch means being mounted on` the ends of the frame and being releasable by the outward movement of said arms for releasing said members to permit the last mentioned spring means to rotate the shafts to cause said members to engage and swing the arms inwardly, relatively to each other.

3. A device as in claim 1, comprising means operable by the inward movement of said arms, relatively to each other, for rocking said plates relatively to the arms for moving the discs into substantially parallel relationship to the arms.

4. An attachment for use on railway vehicles comprising rotatably mounted members for engaging the inner sides of a pair of rails, arms for supporting said rotatable members, spring meansfor urging said arms outwardly of each other,l

means for indicating the gauge of the rails engaged by said rotatable members, means connecting said arms to said indicating means for causing the indicating means to be actuated in response to the movement `of the arms, and spring actuated means for normally holding the rotatable members at oblique angles to the arms and to the rails.

5. An attachment for use on railway vehicles comprising rotatably mounted members for engaging the inner sides of a pair of rails, arms for supporting said rotatable members, spring means for urging said arms outwardly of ea-ch other, means for indicating the gauge of the rails engaged by said rotatable members, means connecting said arms to said indicating means for causing the indicating means to be actuated in response to the movement of the arms, means for swinging said arms upwardly and inwardly to folded positions relatively to, each other, and latch means for norm-ally holding said last mentioned means in an inoperative position, said latch means being movable to a released position by the outward movement of the arms.

6. In an attachment for railway vehicles, a dial mounted on a railway vehicle for indicating the gauge of the track over which the vehicle is moving, a frame detachably connected to the vehicle, arms pivotally connected to the frame and depending therefrom, means pivotally connected to the free ends of said arms, rotatable members carried by said means for engaging the inner sides of the rails of the track over which the vehicle is moving, yieldable means for normally holding the pivotal means and rotatable members at oblique angles to the arms, spring means for urging said arms outwardly for holding said rotatable members in yieldable engagement with the rails, said arms being movable relatively to the frame by variations in the width of the rails, and means connecting said arms to said dial for indicating the variations in the gauge of the track.

7. A device as in claim 6, comprising spring projected pivotally mounted yokes for engaging said arms to move them inwardly and upwardly to folded positions, latch means for normally holding said yokes in inoperative positions, and said latch means being releasable by the outward movement of the arms for releasing said yokes.

8. A track gauge comprising pivotally mounted members for engaging the inner sides of a pair of rails, spring means for urging said members out- Wardly and into engagement with said rails, said members being actuated by variations in the width of the space between the rails, a shaft, means connected to said members and to said shaft for rotating the shaft when said members are actu-ated, a dial face remotely positioned relatively to said members, a shaft journaled in said dial face, pulleys keyed to said shafts, an endless cable trained over said pulleys whereby said last mentioned shaft will be rotated by the rotation of the rst mentioned shaft, and a pointer keyed to said last mentioned shaft and disposed over said dial face for indicating the variations in the gauge of the rails.

AMBRosE 'I'. BRUMFIELD. 

